A solenoidal vector field is a field where the divergence of the field is zero at all points. This property is fundamentally important in electromagnetism, where it ensures the conservation of electric charge and magnetic flux. Solenoidal vector fields are also essential in magnetohydrodynamics, where they characterize the flow of electrically conducting fluids. In physics, examples of solenoidal vector fields include the magnetic field and the electric displacement field.
